Rare trapiche emeralds have a “spoked wheel” appearance and form when impurities outline an emerald’s hexagonal crystal structure. Oval cabochon-cut trapiche emerald, 3.40 cts, 9.3 x 7.9 mm, Colombia. © The Gem Trader. Used with permission.
Emerald has been synonymous with the color green since ancient times. A fine emerald is a truly breathtaking sight, and this member of the beryl…
The beryls are among the most popular, and also the most expensive, of all gems. A wide range of color is represented, from colorless to black. Beryls…
Golden beryl, also known as heliodor, can display rich colors and is an excellent gem choice for jewelry. Learn more about this golden relative…
Oil treatment is a standard industry practice for enhancing emeralds. However, the treatments are not permanent. Learn how to re-oil emeralds…
Many varieties of gems besides diamond can be created in the laboratory. Our synthetic gemstone guide covers many examples and explains their…
To meet the demand for fine emeralds with no clarity enhancements, dealers search for gems to clean and recut. Learn how this emerald transformation…
IGS Become Member